System module descriptions

AUTH messages indicate problems with the authentication module of the SLX-OS.

BFD messages indicate whether the BFD session is up or down for the specific neighbors on the interface.

BGP messages indicate problems with the Border Gateway Protocol (BGP) module of the SLX-OS.

BL messages are a result of faulty hardware, transient out-of-memory conditions, ASIC errors, or inconsistencies in the software state between an interface module and the environment monitor (EM) module.

Bloom is the name of the ASIC used as the building block for third-generation hardware platforms.

CHS (CHASSIS) messages report the problems in the management of the interface modules in the different slots of the chassis.

Distributed Configuration Manager (DCM) messages indicate major switch bootup events, user login or logout, and the configuration operations.

End Loop Detection (ELD) messages notify a loop in the Layer 2 network and the status of the port on which the loop is detected.

The environmental monitor (EM) manages and monitors the various field-replaceable units (FRUs), including the port cards, blower assemblies, power supplies, and World Wide Name (WWN) cards. EM controls the state of the FRUs during system start-up, hot-plug sequences, and fault recovery. EM provides access to and monitors the sensor and status data from the FRUs and maintains the integrity of the system by using the environmental and power policies. EM reflects system status by way of CLI commands, system light emitting diodes (LEDs), and status and alarm messages. EM also manages some component-related data.

The fabric state synchronization framework provides facilities by which the active management module can synchronize with the standby management module, enabling the standby management module to take control of the switch nondisruptively during failures and software upgrades. These facilities include version negotiation, state information transfer, and internal synchronization functions, enabling the transition from standby to active operation.

FSS is defined both as a component and service. A component is a module in the SLX-OS, implementing a related set of functionality. A service is a collection of components grouped together to achieve a modular software architecture.

FW messages indicate the warnings when the temperature, voltage, fan speed, and switch status thresholds are exceeded for the switch subsystems.

HASM is the infrastructure for the High Availability System Management, which has the functionality to maintain the cluster of high-availability switch platforms, deploy and start multiple service instances with active and standby redundancy in a distributed clustering environment, manage the state synchronization and the non-disruptive failovers between active and standby management modules, host the nondisruptive firmware upgrade context, and support the software watchdog and daemon restart.

HIL messages indicate any issues associated with the Hardware Independent Layer (HIL) for general platform components, such as Environmental Monitoring (EM), fan and power supply unit (PSU) subsystems, and other platform FRUs.

IGMP messages indicate any issue that is associated with the Internet Group Management Protocol (IGMP) snooping feature.

KTRC messages indicate any problem that is associated with the RAS-TRACE facility, which provide Extreme internal information to diagnose a failure.

L2AG messages indicate problems with the Layer 2 system agent module. L2SS and L2AG, together, control the Layer 2 forwarding engine and are responsible for MAC learning, aging, and forwarding functionalities.

L2SS messages indicate problems with the Layer 2 system manager module. L2SS and L2AG, together, control the Layer 2 forwarding engine and are responsible for MAC learning, aging, and forwarding functionalities.

LACP error messages indicate problems with the Link Aggregation Control Protocol module of the SLX-OS.

The MAPS module identifies and reports anomalies that are associated with the various error counters, thresholds, and resources monitored on the switch.

Multicast path uses the shortest path first (SPF) algorithm to dynamically compute a broadcast tree.

MSTP messages indicate problems with Multiple Spanning Tree Protocol (MSTP) modules of the SLX-OS.

NSM messages indicate problems with the interface management and VLAN management module of the SLX-OS.

The OpenFlow agent module is responsible for mapping the OpenFlow logical view to physical hardware. Any mapping error or unsupported constructs are logged by these messages.

OpenFlow manager messages indicate any error in the flow, group, meter mod processing by the OpenFlow subsystem. These include protocol error and VDX pipeline limitations along with the internal error conditions. OpenFlow protocol exchanges and connections are also logged through this module.

ONMD messages indicate problems with the Operation, Administration and Maintenance module of the SLX-OS.

OSPF6 messages indicate information or problems with the OSPF version 3 module of the SLX-OS.

Parity data manager (PDM) is a user-space daemon that is responsible for the replication of persistent configuration files from the primary partition to the secondary partition and from the active management module to the standby management module.

PHP messages indicate any important information that is associated with the discovery and creation, deletion, and updating of the port profiles.

PORT messages refer to the front-end user ports on the switch. Front-end user ports are directly accessible by users to connect end devices or connect to other switches.

RAS messages notify when first failure data capture (FFDC) events are logged to the FFDC log and size or roll-over warnings.

Route Processor Source (RPS) messages contain message route map information, such as route map status and the message source address, message group address, and route processor address.

Route Manager (RTM) messages indicate status or errors while updating or maintaining the route and next-hop database.

The internal State Change Notification (SCN) daemon is used for state change notifications from the kernel to the daemons within SLX-OS.

SEC messages indicate security errors, warnings, or information during security-related data management or fabric merge operations. Administrators must watch for these messages to distinguish between internal switch and fabric operation errors and external attack.

sFlow is a standards-based sampling technology embedded within switches and routers, which is used to monitor high-speed network traffic. sFlow uses two types of sampling:

• Statistical packet-based sampling of switched or routed packet flows.

• Time-based sampling of interface counters.

SFLO messages indicate errors or information related to the sFlow daemon.

SLCD messages provide wear-level statistics of the western digital (WD) SiliconDrive 2 compact flash.

Simple Network Management Protocol (SNMP) is a universally supported low-level protocol that allows simple get, get next, and set requests to go to the switch (acting as an SNMP agent). It also allows the switch to send traps to the defined and configured management station. Extreme switches support four management entities that can be configured to receive these traps or informs.

SNMP messages indicate problems in the SNMP operations.

System Resource Monitor daemon monitors memory and CPU usage of all processes. The SRM message is generated when the available low memory is below 100 MB.

The software upgrade library provides the firmware download command capability, which enables firmware upgrades and nondisruptive code load to the switches. SULB messages may be displayed if there are any problems during the firmware download procedure.

SWCH messages are generated by the switch driver module that manages a Fibre Channel switch instance.

TNLD messages indicate status or problems with the Data Center Ethernet (DCE) tunnel manager of the SLX-OS.

TRILL OAM (TOAM) messages indicate problems with the l2traceroute family of commands that help in the troubleshooting of cluster data paths.

Time Service (TS) provides switch time synchronization by synchronizing all clocks in the network. The TS messages indicate information or errors during the switch time synchronization.

UCST is a part of the fabric shortest path first (FSPF) protocol that manages the unicast routing table.

UDLD messages indicate problems with the UniDirectional Link Detection (UDLD) module of the SLX-OS.

Wolverine (WLV) ASIC is a component that connects the front-end port. WLV messages indicate failures in the front-end port.